Pipe



E, S. BOYER April 18, 1933.

PIPE

Filed April' 15, 1931 lNvEvNToR7 /n TTORNEY.

Patented Apr. 18, 1933) i I UNITED STATES PATENT OFFICE EDWIN S. BOYER, F PLAINFIELD, NEW JERSEY, ASSIGNOR TO AMERICAN HARD RUBBER COMPANY, 0F NEW YORK, N. Y., A. CORPORATION 0F NEW' YORK PIPE Application filed April 13, 1931. Serial No. 529,706.

The invention relates to improved means quired lengths. Since the pipe sections are for forming or constructing a line of piping provided throughout their entire lengths and/'or repairing damaged portions thereof. with the single or plural threads, the pipe The invention has been developed in resections may be cut at any point and consponse to a demandfor a more convenient nected to the coupling members, thus entire- 55 means for making and repairing piping in ly doing away with the necessity for providmines and similar places where the necessarying thread cutting tools. tools for cutting threads on the pipe ends Referring more particularly to the drawand related parts are not ordinarily found ing, the pipe sections are indicated at 5 and 0 and Where the provision and use of such tools in form are the usual cylindrical tubes or- 60.

are inconvenient and often impossible. For dinarily used for piping. The pipe sections example, a line of piping through which may be of any convenient length, and in Water is pumped from the bottom of a mine the drawing only the ends of adjacent pipe to the surface will pass through several sections are shown. The spiral or helix floors or levels. It is not convenient, nor dewhich extends throughout the entire length 65 sirable from the standpoint of operating exof the pipe sections is indicated at 6, and is pense, to maintain a repair kit including preferably formed integrally with the matethread cutting tools at each level, and somerial composing the pipe sections and constitimes it is only possible to have one at the tutes a ridge on the exterior' surface of the surface level or adit of the'mine. Consepipe sections. In the drawing the spiral 70 quently, when a break occurs in the piping ridge is shown as a double thread, but it may at some distance from the repair tools or in be a single thread or even a triple thread. a situation where it is difcult to use thread Where a straight line of piping is to be cutting tools, much time is lost in repairing constructed or repaired the ends of the abutthe break. This difficulty is obviated by the ting pipe sections will be connected by a 75 improved pipe of the present invention. Straight coupling as indicated at 7 in Figs'l The preferred embodiment of the .imand 2. Between the abutting ends of the proved pipe is illustrated in the accompanyplpe sections is preferably interposed a gasket ing drawing in which Fig. 1 is an elevation 0r Washer 8. Wherea bend is to be made in of the ends of two abutting pipes connected the line of piping the adjacent ends of the 80 by a straight coupling member; Fig. 2 is a` plpe sections will be joined by an elbow, as view similar to Fig. 1, but withthe middle 4indicated at 9 in Fig. 3. The interior of the portion shown in section; Fig. 3 is an elevaelbow 9 may be formed with the shoulders 1() tion of two pipe ends connected by an elbow; to provide seats for washers or gaskets against .and Fig. 4 is an elevation of three pipe ends which the ends of the pipe sections may be 85 connected by a T. forced. And where a straight line of piping The invention consists in providing pipe iS to be provided with a branch, a T 12 will sections throughout their entire length with be used, asindicated in Fig. 4. The T 12 will an external spiral or helix, preferably have shoulders formed therein to provide formed integral with the substance which seats against which the ends of the pipe sec- .composes the pipe. The spiral or helix may tions will be forced. It will be understood be asingle or plural thread as desired. With that the straight coupling member 7, the the pipe sections thus preformed, the probelbow 9, the T 12 or any other coupling memlem of'joining together a number of the pipe ber to be employed for connecting the pipe sections to build up a new system of piping ends, will be provided with internal threads or of repairing a damaged system or piping corresponding in pitch and arrangement to composed of sections of the improved pipe theexternal threads on the pipe sections. is much simplified. It is necessary to be pro- Although the improved pipe constituting videdfiwith only a saw or similar cutting tool the subject of the present `invention may be for dividing the pipe sections into the recomposed of any suitable material, I prefer to form it of Ihard rubber or similar plastic compound, in order'that the line of piping *constructed from the improved pipe sections may be adapted for a large number of purposes for which the usual ipe materials are not suitable, as for examp e, processing and transportation of solutions giving acid and alkali reactions and also solutions containing solids which have an abrasive action on the piping.

Having thus described the invention and how it is to be used, what I claim as new is In the art of pipes for use in mining and thel like formed of plastic compound and of cylindrical form, each pipe having smooth interior and exterior surfaces, means for repairing a broken pipe comprising a coupling internally spirally grooved for the reception of the plpe ends and-a spiral ridge on the outer smooth surface of each pipe extending the full length thereof whereby a coupling may be applied to a pipe at any point over the length thereof.

p EDWIN S. BOYER. 

